package io.homework;

import java.io.FileOutputStream;

public class Test1 {
    public static void main(String[] args) throws Exception {
        FileOutputStream fos = new FileOutputStream("test.txt");

        fos.write(4);
        fos.write(4);
        fos.write(4);
        System.out.println("创建完成");
        fos.close();

    }
}
